Ecology of Some Native and Introduced Fishes of the Sierra Nevada Foothills in Central California

Copeia ◽  
1973 ◽  
Vol 1973 (3) ◽  
pp. 478 ◽  
Author(s):  
Peter B. Moyle ◽  
Robert D. Nichols
Keyword(s):  
Sierra Nevada ◽  
Central California ◽  
Sierra Nevada Foothills ◽  
Introduced Fishes

Philip Tyson's 1849 study of California gold prospects

2017 ◽  
Vol 36 (1) ◽  
pp. 30-40
Author(s):  
K. R. Aalto
Keyword(s):  
San Francisco ◽  
Sierra Nevada ◽  
Cross Sections ◽  
Coast Range ◽  
Central California ◽  
Franciscan Complex ◽  
General Geology ◽  
Basement Rocks ◽  
Sierra Nevada Foothills ◽  
Fluvial Sedimentation

Philip Thomas Tyson (1799–1877) toured privately through central California, from San Francisco through the Sierra Nevada foothills gold prospects in 1849, to assess their potential and the general geology of the region. He produced the first regional map with geologic notations and several rough topographic/geologic cross-sections. He described Coast Range basement rocks, now described as Franciscan Complex mélange and broken formation, the stratigraphic configuration of the Great Valley, and general geology of the Sierra Nevada foothills. He recognized that the older Coast Range and Sierran basement were deformed prior to recent volcanism and extensive terrestrial fluvial sedimentation, likely Neogene in age.

Review of Seismic Hazard Issues Associated with Auburn Dam Project, Sierra Nevada Foothills, California

1996 ◽  
Author(s):  
D.P. Schwartz ◽  
W.B. Joyner ◽  
R.S. Stein ◽  
R.D. Brown ◽  
A.F. McGarr ◽  
...  
Keyword(s):  
Seismic Hazard ◽  
Sierra Nevada ◽  
Sierra Nevada Foothills

Near earthquakes in Central California*

1939 ◽  
Vol 29 (3) ◽  
pp. 427-462 ◽  
Author(s):  
Perry Byerly
Keyword(s):  
Least Squares ◽  
Travel Time ◽  
Sierra Nevada ◽  
Accurate Determination ◽  
Depth Of Focus ◽  
Surface Layers ◽  
P Waves ◽  
Central California ◽  
The Waves

Summary Least-squares adjustments of observations of waves of the P groups at central and southern California stations are used to obtain the speeds of various waves. Only observations made to tenths of a second are used. It is assumed that the waves have a common velocity for all earthquakes. But the time intercepts of the travel-time curves are allowed to be different for different shocks. The speed of P̄ is found to be 5.61 km/sec.±0.05. The speed for S̄ (founded on fewer data) is 3.26 km/sec. ± 0.09. There are slight differences in the epicenters located by the use of P̄ and S̄ which may or may not be significant. It is suggested that P̄ and S̄ may be released from different foci. The speed of Pn, the wave in the top of the mantle, is 8.02 km/sec. ± 0.05. Intermediate P waves of speeds 6.72 km/sec. ± 0.02 and 7.24 km/sec. ± 0.04 are observed. Only the former has a time intercept which allows a consistent computation of structure when considered a layer wave. For the Berkeley earthquake of March 8, 1937, the accurate determination of depth of focus was possible. This enabled a determination of layering of the earth's crust. The result was about 9 km. of granite over 23 km. of a medium of speed 6.72 km/sec. Underneath these two layers is the mantle of speed 8.02 km/sec. The data from other shocks centering south of Berkeley would not fit this structure, but an assumption of the thickening of the granite southerly brought all into agreement. The earthquakes discussed show a lag of Pn as it passes under the Sierra Nevada. This has been observed before. A reconsideration of the Pn data of the Nevada earthquake of December 20, 1932, together with the data mentioned above, leads to the conclusion that the root of the mountain mass projects into the mantle beneath the surface layers by an amount between 6 and 41 km.

Cybaeus (Araneae: Cybaeidae): the aspenicolens species group of the Californian clade

Zootaxa ◽  
2021 ◽  
Vol 4926 (2) ◽  
pp. 224-244
Author(s):  
ROBB BENNETT ◽  
CLAUDIA COPLEY ◽  
DARREN COPLEY
Keyword(s):  
Sierra Nevada ◽  
Species Group ◽  
Identification Key ◽  
Mountain Range ◽  
Kern County ◽  
East Central ◽  
Central California ◽  
Distribution Maps ◽  
Moist Forest ◽  
Species Groups

Species of North American Cybaeus L. Koch (Araneae: RTA clade: Cybaeidae) are common moist-forest spiders classified in Holarctic and Californian clades. Here, in the second paper in a planned series reviewing the six Californian clade species groups, we review the species of the aspenicolens group. We recognize five species in two subgroups: the aspenicolens subgroup (Cybaeus aspenicolens Chamberlin & Ivie, C. blasbes Chamberlin & Ivie, and C. coylei Bennett spec. nov.) and the fraxineus subgroup (C. fraxineus Bennett spec. nov. and C. thermydrinos Bennett). The species of the aspenicolens group have very restricted distributions on the western slopes of the central and southern Sierra Nevada mountain range from Tuolumne County south to northern Kern County in east central California, U.S.A. Descriptions, illustrations, distribution maps, and an identification key are provided for the five species as well as a discussion of conservation issues of relevance to the group. 

scholarly journals Ranchers Vs. Ranchettes in California's Oak Rangelands

Rangelands ◽  
2004 ◽  
Vol 26 (2) ◽  
Author(s):  
Matthew J. Wacker ◽  
N. Maggi Kelly ◽  
Keyword(s):  
Sierra Nevada ◽  
Vegetation Management ◽  
Livestock Grazing ◽  
Management Tool ◽  
Sierra Nevada Foothills

Livestock grazing appears a viable and useful vegetation management tool in the Sierra Nevada Foothills.

scholarly journals Elegy Written in a Country Schoolhouse

2013 ◽  
Vol 3 (1) ◽  
pp. 41-49 ◽  
Author(s):  
Howard Hendrix
Keyword(s):  
United States ◽  
Private Sector ◽  
Sierra Nevada ◽  
The United States ◽  
Political Factors ◽  
Fresno County ◽  
The Public ◽  
School Year ◽  
Sierra Nevada Foothills ◽  
The Relationship

Article examines the economic, environmental, social, and political factors involved in the closing of Auberry Elementary School in the Sierra Nevada foothills of Fresno County after the 2010–2011 school year. The closing of the school serves as a window onto the shifting landscape of the relationship between the private sector and the public good not only in Auberry but throughout California and the United States.

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